GM Service Manual Online
For 1990-2009 cars only

Data

Battery Voltage: The scan tool displays 0-17 volts. The battery voltage avalible to the Electronic Brake Control Module (EBCM).

EVO Actual Current: The scan tool displays the current the control module is actually commanding to the EVO solenoid.

EVO Command: The scan tool displays the state of the EVO solenoid.

EVO Desired Current: The scan tool displays the current the control module is trying to command to the EVO solenoid.

EVO Drive PWM: The scan tool displays the pecentage of availible voltage for the EVO solenoid.

EVOHI Feedback: The scan tool displays the output voltage from the control module to the EVO solenoid.

EVO Input Current: The scan tool displays the input voltage to the control module of the EVO solenoid.

EVOLOW Feedback: The scan tool displays the return voltage from the EVO solenoid to the control module.

Steering Wheel Position Sensor: The scan tool displays the output voltage of the of the steering wheel position sensor.

Steering Wheel Position Signal 1: The Scan Tool displays the output voltage of the signal 1 circuit of the Steering Wheel Position Sensor.

Steering Wheel Position Signal 2: The scan tool displays the output voltage of the signal 2 circuit of the Steering Wheel Position Sensor.

Steering Wheel Rate: The scan tool displays the speed at which the steering wheel is turning.

Vehicle Speed: The scan tool displays vehicle speed via a class 2 serial data circuit from the powertrain control module (PCM).